only at denny's. >>> thanks for joining us on this friday morning. much of the country is under a big chill this morning. it depends on where you are but a lot of us are cold. >> stretching from maine to maryland, the deep freeze has taken over a third of the u.s. and creating dangerous conditions. salt lake city utah had to be shut down because pilots were sliding down runway. that's on the west coast or west side of the country in utah. >> felt like the whole plane was going sideways. >> temperatures so frigid that water from this new york city fire hydrant frozen in place. and in new hampshire ski resorts closed. deadly cold plast in the air is moving south towards alabama where salt trucks are ready to battle the roads. >> it's interesting when you think about that with the ski resorts shutting down because of this. there are points where the temperatures can become too dangerous. >> i know. but i never thought of that until this happened this year. people are seeing skiing no matter what. >> exactly. >> today once again guys we are in the deep f